Source code for pygerber.parser.parser

# -*- coding: utf-8 -*-
from __future__ import annotations

from abc import ABC, abstractmethod
from typing import Deque

from pygerber.mathclasses import BoundingBox
from pygerber.renderer import Renderer
from pygerber.renderer.apertureset import ApertureSet
from pygerber.tokenizer import Tokenizer
from pygerber.tokens.token import Token


class AbstractParser(ABC):

    tokenizer: Tokenizer
    apertureSet: ApertureSet
    __is_bound: bool

    def __init__(self, ignore_deprecated: bool = True) -> None:
        self.tokenizer = Tokenizer(ignore_deprecated)
        self.renderer = Renderer(self.apertureSet)
        self.__is_bound = False

    def parse_file(self, file_path: str):
        with open(file_path) as file:
            source_string = file.read()
        self.parse(source_string, file_path)

    def parse(self, source_string: str, file_path: str = "<string>"):
        if self.__is_bound:
            raise RuntimeError(
                "Gerber parser is not allowed to be used to parse multiple sources."
            )
        token_stack = self.tokenizer.tokenize(source_string, file_path)
        bbox = self.renderer.total_bounding_box(token_stack)
        self._pre_render(bbox)
        self._render(token_stack)
        self.__is_bound = True

    def _pre_render(self, bbox: BoundingBox):
        pass

    @abstractmethod
    def _render(self, token_stack: Deque[Token]):
        pass

    @abstractmethod
    def save(self, file_path: str, format: str = None) -> None:
        pass